/// <summary>
/// Получить тело сообщения.
/// </summary>
/// <param name="msgLink"></param>
/// <returns></returns>
public virtual MessageBody GetMessageBody(int msgLink)
{
UnitOfWork work = BeginWork();
MessageBodyInfo bodyInfo = work.Get <DAO.MessageBodyInfo>(msgLink).ToObj();
if (bodyInfo == null)
{
return(null);
}
MessageBodyStreamBase stream = ConstructMessageBodyStream(msgLink, work, DataStreamMode.READ, bodyInfo.ContentType().Encoding());
stream.ReadTimeout = this.ExecuteTimeout;
if (bodyInfo.Length == null)
{
bodyInfo.Length = (int)stream.Length;
}
var body = new MessageBody();
body.ApplyInfo(bodyInfo);
body.Value = new MessageBodyReader(stream, this.bufferSize);
return(body);
}
/// <summary>
/// Сохранить тело сообщения.
/// </summary>
/// <param name="body"></param>
public virtual void SaveMessageBody(MessageBody body)
{
#region Validate parameters
if (body == null)
{
throw new ArgumentNullException("body");
}
#endregion
MessageBodyInfo bodyInfo = body.BodyInfo();
ContentType contentType = bodyInfo.ContentType();
Encoding encoding = contentType.Encoding();
DAO.MessageBodyInfo dao = bodyInfo.ToDao();
using (UnitOfWork work = BeginWork())
{
work.Update <DAO.MessageBodyInfo>(ref dao);
using (MessageBodyStreamBase stream = ConstructMessageBodyStream(dao.MessageLINK, work, DataStreamMode.WRITE, encoding))
{
stream.WriteTimeout = this.ExecuteTimeout;
var buffer = new char[this.bufferSize];
int charsReaded;
do
{
charsReaded = body.Value.Read(buffer, 0, buffer.Length);
if (charsReaded > 0)
{
stream.Write(buffer, 0, charsReaded);
}
} while (charsReaded > 0);
if (dao.Length == null)
{
dao.Length = (int)stream.Length;
work.Update <DAO.MessageBodyInfo>(ref dao);
}
work.End();
}
}
bodyInfo = dao.ToObj();
body.ApplyInfo(bodyInfo);
}
/// <summary>
///
/// </summary>
/// <param name="stream"></param>
/// <param name="bufferSize">Больше или равно 1024.</param>
public MessageBodyReader(MessageBodyStreamBase stream, int bufferSize)
{
#region Validate parameters
if (stream == null)
{
throw new ArgumentNullException("stream");
}
if (!stream.CanRead)
{
throw new ArgumentException("Поток не доступен для чтения.", "stream");
}
if (bufferSize < 1024)
{
throw new ArgumentException("Недостаточный размер буфера данных.", "bufferSize");
}
#endregion
this.baseStream = stream;
this.bufferSize = bufferSize;
}
